diff --git a/include/mbedtls/x509.h b/include/mbedtls/x509.h
index 3091de1..b7a969a 100644
--- a/include/mbedtls/x509.h
+++ b/include/mbedtls/x509.h
@@ -21,6 +21,7 @@
  */
 #ifndef MBEDTLS_X509_H
 #define MBEDTLS_X509_H
+#include "mbedtls/private_access.h"
 
 #if !defined(MBEDTLS_CONFIG_FILE)
 #include "mbedtls/config.h"
@@ -229,8 +230,8 @@
 /** Container for date and time (precision in seconds). */
 typedef struct mbedtls_x509_time
 {
-    int year, mon, day;         /**< Date. */
-    int hour, min, sec;         /**< Time. */
+    int MBEDTLS_PRIVATE(year), MBEDTLS_PRIVATE(mon), MBEDTLS_PRIVATE(day);         /**< Date. */
+    int MBEDTLS_PRIVATE(hour), MBEDTLS_PRIVATE(min), MBEDTLS_PRIVATE(sec);         /**< Time. */
 }
 mbedtls_x509_time;